<template>
    <div>
        <div id="slider" class="mui-slider">
				<div id="sliderSegmentedControl" class="mui-scroll-wrapper mui-slider-indicator mui-segmented-control mui-segmented-control-inverted">
					<div class="mui-scroll">
						<a :class="['mui-control-item',item.id==0?'mui-active':'']" v-for="item in cates" :key="item.id"
						@tap="getPhotoListByCateId(item.Id)">
							
							{{item.title}}
						</a>
					</div>
				</div>

			</div>
			 <ul class="photo-list">
  <router-link v-for="item in list" :key="item.id" :to="'/home/photoinfo/'+item.id" tag="li"> 
     <img v-lazy="item.img_url">
		 <div class="info">
			 <h1 class="info-title">{{item.title}}</h1>
			 <div class="info-body">{{item.zhaiyao}}</div>
		 </div>
  </router-link>
</ul>
    </div>
</template>
<script>
// 导入mui的js文件
import mui from '../../lib/mui/js/mui.min.js'
// 初始化滑动控件

export default {
    data(){
        return{
			cates:[],
			list:[]//所有分类的数组
		}
	},
	created(){
		this.getAllCategory();
		// 默认进入页面,就主动请求 所有图片列表的数据
		this.getPhotoListByCateId(0);
	},
    mounted(){
mui('.mui-scroll-wrapper').scroll({
	deceleration: 0.0005 //flick 减速系数，系数越大，滚动速度越慢，滚动距离越小，默认值0.0006
});
    },
    methods:{
     getAllCategory(){
		//  获取所有的图片分来
		this.$http.get("api/getimgcategory").then(result=>{
          if(result.body.status===0){
			//   手动拼接出一个最完整的 分类列表
			result.body.message.unshift({title:"全部",id:0});
			this.cates=result.body.message;
		  }
		})
	 },
	 getPhotoListByCateId(cateId){
		// 根据分类Id获取图片列表
		this.$http.get("api/getimages/"+cateId).then(result=>{
			if(result.body.status===0){
				this.list=result.body.message;
			}
		})
	}
	}
	
}
</script>
<style lang="scss" scoped>
*{
    touch-action: pan-y;
}
.photo-list{
	list-style: none;
	margin: 0;
	padding: 0;
	padding: 10px;
	padding-bottom: 0;

	li{
		background-color: #ccc;
		text-align: center;
		margin-bottom: 10px;
		box-shadow: 0 0 9px #999;
		position: relative;
			img{
		width: 100%;
		vertical-align: middle;
	}
    img[lazy=loading] {
  width: 40px;
  height: 300px;
  margin: auto;
}
.info{
	position: absolute;
	bottom:0;
	background: rgba(0,0,0,.4);
	text-align: left;
	color:white;
	max-height: 84px;
	.info-title{
font-size: 14px
	}
	.info-body{
font-size: 13px;
	}
}
	}
}

</style>
